【作者】 孙殿柱； 孙肖霞； 李延瑞； 范志先；

【Author】 SUN Dian-zhu,SUN Xiao-xia,LI Yan-rui,FAN Zhi-xian(School of Mechanical Engineering,Shandong University of Science and Technology,Zibo 255049,China)

【机构】 山东理工大学机械工程学院；

【摘要】 本文提出一种基于波前扩展法的寻找边界点的新方法,首先对散乱点云进行空间栅格剖分,创建初始波前环,在波前环扩展的过程中标记边界边,实现从点云数据中提取内外边界信息。应用实例表明,算法的适用于任何测量点云,提取的边界数据精度高,可直接用于曲线拟合。更多还原

【Abstract】 A new method of boundary extracting based on advancing front method is proposed. initial front is constructed after the scattered point cloud segmented by the spatial boxes, and then the points of inside and outside boundary are extracted from point cloud by marking boundary during the extension of the initial front. Empirical results show that the proposed algorithm is suitable to any measured data and the extracting boundary data is precise which can be used to fit curve directly.更多还原